71922485 has 8 divisors (see below), whose sum is σ = 86857656. Its totient is φ = 57170880.

The previous prime is 71922481. The next prime is 71922517. The reversal of 71922485 is 58422917.

It can be written as a sum of positive squares in 4 ways, for example, as 6522916 + 65399569 = 2554^2 + 8087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71922485 - 2² = 71922481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71922481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45026 + ... + 46595.

It is an arithmetic number, because the mean of its divisors is an integer number (10857207).

Almost surely, 2^71922485 is an apocalyptic number.

It is an amenable number.

71922485 is a deficient number, since it is larger than the sum of its proper divisors (14935171).

71922485 is a wasteful number, since it uses less digits than its factorization.

71922485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91783.

The product of its digits is 40320, while the sum is 38.

The square root of 71922485 is about 8480.7125290273. The cubic root of 71922485 is about 415.8674168374.

The spelling of 71922485 in words is "seventy-one million, nine hundred twenty-two thousand, four hundred eighty-five".